Abdominal exerciser bench



FIG. 1 is a perspective view showing the new design for an abdominal exerciser bench;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an abdominal exerciser bench, as shown and described. 